Abstract
The PMSM drive system is widely used in new energy vehicles, and the rational design of the electric braking control strategy can maximize the recovery of energy during the braking process of the vehicle and improve the energy utilization rate of the vehicle. This paper firstly analyzes the energy system architecture of PMSM driving electric vehicle. Then the braking range, braking intensity and vehicle speed are classified and the braking intention is accurately identified based on the fuzzy control strategy. And, the braking strategy is modified by considering the braking constraints of the PMSM and the state constraints of the power battery. Finally, a test platform is built to verify the designed control strategy under six typical braking conditions.
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